http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Efficiency of Various Nutritional Sources to Improve Physical Properties of Saline-Sodic Soil
Noor-Us-Sabah, Noor-Us-Sabah,Sarwar, Ghulam,Ibrahim, Muhammad,Tahir, Mukkram Ali,Iftikhar, Yasir,Haider, Muhammad Sajjad,Han, Kyung-Hwa,Ha, Sang-Keun,Zhang, Yong-Seon Korean Society of Soil Science and Fertilizer 2012 한국토양비료학회지 Vol.45 No.1
This study was conducted to evaluate the efficiency of various inorganic and organic materials to improve physical properties of soil. Saline sodic soil (saturation percentage = 40.36%, $EC_e=5.15dS\;m^{-1}$, $pH_s=8.70$, $SAR=18.84(m\;mol\;L^{-1})^{1/2}$, bulk density =$1.49Mg\;m^{-3}$) was collected, brought to wire house and filled in pots after laboratory analysis for various parameters. Different sources of organic nutrients like farm manure (FM), press mud, compost, poultry manure and sesbania green manure were analyzed for their chemical composition. The experiment comprised of 12 treatments replicated thrice; $T_1$: control (recommended NPK), $T_2:{\frac{1}{2}}$ recommended NPK, $T_3$: FM at 1.5% by soil weight, $T_4$: pressmud at 1.5% by soil weight, $T_5$: compost at 1.5% by soil weight, $T_6$: poultry manure at 1.5% by soil weight, $T_7$: sesbania green manure at 1.5% by soil weight, $T_8:T_2$ + FM at 0.75% by soil weight, $T_9:T_2$ + pressmud at 0.75% by soil weight, $T_{10}:T_2$ + compost at 0.75% by soil weight, $T_{11}:T_2$ + poultry manure at 0.75% by soil weight, $T_{12}:T_2$ + sesbania green manure at 0.75% by soil weight. These treatments were applied using completely randomized (CR) design and appropriate time was given to decompose these organic nutritional sources. Seeds of wheat cultivar Sahar-2006 were sown. After harvesting the wheat, soil samples were collected from each pot and analyzed for various physical properties like bulk density, porosity and saturation percentage. An improvement in physical properties (bulk density, porosity and saturation percentage) of soil was noticed with the application of various organic nutritional sources but role of compost alone ($T_5$) remained prominent.
Using Provenance to Detect Selective Forwarding Attack in RPL-Based Internet of Things
Sabah Suhail(사바 수하일),Shashi Raj Pandey(샤시 라즈 판데이),Choong Seon Hong(홍충선) 한국정보과학회 2020 정보과학회 컴퓨팅의 실제 논문지 Vol.26 No.1
Internet of Things (IoT)에서 리소스가 제한된 사물들은 IPv6와 6LoWPAN 네트워크를 통해 인터넷에 연결될 수 있다. 저전력 손실 네트워크를 위한 라우팅 프로토콜(RPL)은 그러한 상호연결을 가능하게 한다. 그러나 RPL을 사용하는 데이터 전송은 신뢰할 수 없는 인터넷과 방치된 사물들의 상호 연결 때문에 다양한 공격에 취약하다. 예를 들어, 센서들에 의해 생성되는 데이터는 선택적 포워딩 공격과 같은 공격들에 취약하다. 따라서 오류가 없고 신뢰성 있는 정보의 경우 의사결정 과정에서 보장 될 수 없다. 소스에서 목적으로 데이터를 전송하는 과정 동안, provenance는 데이터 수집 및 데이터 통과를 추적하는데 사용될 수 있다. 본 논문에서는 provenance를 사용하여 패킷 경로의 각 전달 노드에서 패킷 전달 비율(PDR)을 계산하여 네트워크 성능을 평가한다. 또한 장애 노드를 식별하기 위해, 네트워크에 참여하는 각 부모 노드의 라우팅 테이블에서 각 하위 노드로부터 받은 패킷 수를 유지한다. 마지막으로 본 논문은 provenance 크기, 생성시간 및 메모리 소비 측면에서 RPL기반 IoT에 대한 제안된 접근 방식을 평가하였다. In the Internet of Things (IoT), resource-constrained things can connect to the Internet via IPv6 and 6LoWPAN networks. The Routing Protocol for Low-Power and Lossy Networks (RPL) has enabled such interconnection. However, the data transportation using RPL is vulnerable to various attacks due to the interaction between unattended things with the unreliable Internet. For instance, the data generated by sensors are vulnerable to attacks (for instance, selective forwarding attack). Therefore, error-free and reliable information cannot be assured in the decision-making process. During data transmission from source to destination, provenance can be used to track data acquisition and data traversal. In this paper, we use provenance to evaluate the network performance by computing the packet delivery ratio (PDR) at each forwarding node in the packet path. Furthermore, to identify the faulty nodes, we counted the packets received from the respective child nodes in the routing table at each parent node participating in the network. We have evaluated the proposed approach for RPL-based IoT in terms of provenance size, provenance generation time, and memory consumption.
Sabah Dhibi,Amani Ettaya,Abdelfettah Elfeki,Najla Hfaiedh 한국영양학회 2015 Nutrition Research and Practice Vol.9 No.5
BACKGROUND: Currently, natural products have been shown to exhibit interesting biological and pharmacological activities and are used as chemotherapeutic agents. The purpose of this study, conducted on Wistar rats, was to evaluate the beneficial effects of Artemisia arborescens oil on oestroprogestative treatment induced damage on liver. MATERIALS/METHODS: A total of 36 Wistar rats were divided into 4 groups; a control group (n = 9), a group of rats who received oestroprogestative treatment by intraperitoneal injection (n = 9), a group pre-treated with Artemisia arborescens then injected with oestroprogestative treatment (n = 9), and a group pre-treated with Artemisia arborescens (n = 9). To minimize the handling stress, animals from each group were sacrificed rapidly by decapitation. Blood serum was obtained by centrifugation and the livers were removed, cleaned of fat, and stored at -80℃ until use. RESULTS: In the current study, oestroprogestative poisoning resulted in oxidative stress, which was demonstrated by 1) a significant increase of lipid peroxidation level in hepatic tissue 2) increased levels of serum transaminases (aspartate amino transferase and serum alanine amino transferase), alkaline phosphatase, glycemia and triglycerides and a decrease in the level of cholesterol 3) alteration of hepatic architecture. Pre-administration of Artemisia arborescens oil was found to alleviate oestroprogestative treatment induced damage by lowering lipid peroxidation level and by increasing activity of catalase, superoxide-dismutase, and glutathione-peroxidase in liver and by reducing disruption of biochemical parameters. CONCLUSION: Therefore, the results obtained in this study confirmed that Artemisia essential oil protects against oestroprogestative administration induced hepatotoxicity by restoration of liver activities.